Theatrhythm Final Bar Line is a music rhythm RPG developed by indieszero Co., Ltd. and released in 2023 for PlayStation 4 and Nintendo Switch. Part of the long-running Theatrhythm spin-off series, it draws from the broader Final Fantasy franchise to assemble a library of 385 tracks spanning the series' history. Players tap, slide, and hold to the beat of iconic compositions while engaging with RPG mechanics, including character customization and party building using familiar Final Fantasy heroes. The game represents the most expansive entry in the Theatrhythm lineup, offering a substantial collection of battle themes, field music, and event pieces drawn from across the mainline titles and related entries. Its combination of accessible rhythm gameplay with deeper progression systems gives it appeal both to fans seeking a musical retrospective and to players interested in character-driven mechanical depth.